Chilkat .NET Downloads

[Reflection.Assembly]::LoadFile("C:\myAssemblies\ChilkatDotNet47.dll")
# This example requires the Chilkat API to have been previously unlocked.# See Global Unlock Sample for sample code.
$ws = New-ObjectChilkat.WebSocket# For brevity, this example does not check for errors when etablishing the WebSocket connection.# See Establish WebSocket Connection for more complete sample code for making the connection.
$rest = New-ObjectChilkat.Rest# Connect to websockets.chilkat.io# IMPORTANT: websockets.chilkat.io accepts frames of up to 16K in size and echoes them back.# IMPORTANT: The websockets.chilkat.io server imposes the following limitations: # ---------- Messages must be 16K or less, and each connection is limited to a max of 16 echoed messages.
$success = $rest.Connect("websockets.chilkat.io",80,$false,$false)
$ws.UseConnection($rest)
$ws.AddClientHeaders()
$responseBodyIgnored = $rest.FullRequestNoBody("GET","/wsChilkatEcho.ashx")
$success = $ws.ValidateServerHandshake()
if ($success -ne $true) {
$($ws.LastErrorText)
exit
}
# This example sends a small JPG file (about 7KB) in a websocket frame.
$jpgData = New-ObjectChilkat.BinData
$success = $jpgData.LoadFile("qa_data/jpg/starfish.jpg")
$("Number of bytes to send = " + $jpgData.NumBytes)
# Send a frame containing the JPG image data.# This will be the first and final frame, and therefore this constitutes the entire message.
$finalFrame = $true
$success = $ws.SendFrameBd($jpgData,$finalFrame)
if ($success -ne $true) {
$($ws.LastErrorText)
exit
}
# Read the echoed binary frame(s).# (We sent the JPG file in a single frame, but we may receive the echo in multiple frames, but it will be one message.)# Read an incoming frames until we receive the final frame.
$receivedFinalFrame = $falsewhile ($receivedFinalFrame -eq $false) {
# The ws object is accumulating the received data internally. Once we get the final frame, we'll get the # accumulated data which should constitute the entire JPG.
$success = $ws.ReadFrame()
if ($success -ne $true) {
$("Failed to receive a frame")
$("ReadFrame fail reason = " + $ws.ReadFrameFailReason)
$($ws.LastErrorText)
exit
}
$receivedFinalFrame = $ws.FinalFrame# Show the opcode and final frame bit for the frame just received:
$("Frame opcode: " + $ws.FrameOpcode)
$("Final frame: " + $receivedFinalFrame)
}
# Get the accumulated received data.
$jpgReceivedData = New-ObjectChilkat.BinData
$ws.GetFrameDataBd($jpgReceivedData)
$("Received " + $jpgReceivedData.NumBytes + " bytes")
# Save the received JPG to a file so we can check it..
$jpgReceivedData.WriteFile("qa_output/starfish_ws.jpg")
# Close the websocket connection.
$success = $ws.SendClose($true,1000,"Closing this websocket.")
if ($success -ne $true) {
$($ws.LastErrorText)
exit
}
# Read the Close response.
$success = $ws.ReadFrame()
if ($success -ne $true) {
$("ReadFrame fail reason = " + $ws.ReadFrameFailReason)
$($ws.LastErrorText)
exit
}
# Should receive the "Close" opcode.
$("Received opcode: " + $ws.FrameOpcode)
# Should be the same status code we sent (1000)
$("Received close status code: " + $ws.CloseStatusCode)
# The server may echo the close reason. If not, this will be empty.
$("Echoed close reason: " + $ws.CloseReason)
$("Success.")